Bucket for impact-wheels.



PATENTED 1136.31, 1907.

w. DOBLE. BUCKET FOR IMPACT WHEELS;

APPLICATION FILED MAR. 2, 1907.

Jffi. 3M Mme/MM v atto'zmqo the j et ,1 the tendency of the latter is firsjt to be Y bucket to be deflected upward and back 1 against the rear of the next following'bucket,

" backward in'the direction of rotation of the 'Wheels, 0

, and each bucket is cut away at the outer end so as to form at the inner side a. recess 2:, the

WILLIAM A. 'DOBLE, or SAN FRANoIsoo, CALIFORNIA.

BUCKET I FOR IMPACT-WHEELS.

Specification of Letters Patent.

Patented Dec. 31,4907.

Application filed Harchfi. 1907- Serial No. 350,168.

To all whom it may concern:

citizen 6f the United States, and resident of San Francisco, San Francisco county State of California, have invented certain new and useful Im rovements in Buckets for Impactwhich the following is a specificatlon. i

The buckets of impact wheels in some in-' stances havetwin pockets, arranged side by" side, each pocket being a proximately'sernispherical and as upon t e rotation of the wheel the outer lipor end'of the bucket enters dis creed or broken by said end and then str1 'ng the lower curved inner face jof'the the reaction of this point being backward. To overcome the objections to this form of bucket I have so constructed 'the bucket that the jet will not strike the same until the bucket is in a position for the 'et to meet a dividing ridge near the center 0 the buckets, as fully set forth hereinafter and as'illustrated in the accompanying drawing, in which,

Figure lillustrat'es part of the wheel of an impact mot-or showing two buckets one in section; Fig. 2 isfa face viewof one of the buckets; Fig. 3 across section on theline 33- of Fig. 2. Y v

The disk D of the wheel'is constructed to support the buckets each of which consists of a shell A having twin pockets divided by an intermediate rib a having a sharpened edge,

recess a, w, thus formed being intermediate the said recess and its edge bein inclined buckets, in other words, lying upon a plane 8 which is at an angle to the plane i of the edge of the bucket.

By reference to Fig. 1, it will be seen with a bucket of the characterdescribed the jet 'W will not make contact with the center rib of the bucket until the outer end or lip of the latter has passed downward below the jet and the latter will first strike the sharp divided rib or ribs (2 at a oint near the center of the bucket so t hat t ere will be no tend-.

'struction of buckets shown I-claim as my ency of the jet to be deflected upward and against the back of the followingbucket, but the discharge will be at the sides of the bucket and near the center. Further, it will be seenthat by-the arrangement described,

the jet will continue to act upon the center of each" bucket after the lower edge of .the following bucket has passed below the jet, sothat the jet instead of being met by the outer lip or edge of each bucket and being divided and dispersed, retains its" solid form until it is brought to act effectively upon the bucket near the-center thereof. It will further be seen that owing to this effect the disturbances which would be set up in the jet by the entrance lip being carried into the jetas usual are avoided. Owing further to the edge of the rib a being retracted 0i. inclined in the rotation of the bucket,-it is'brought into the jet more nearly at right angles than if the edge were upon the line i and the jet is not improperly deflected radially inward as would otherwise be the case and the discharge from the bucket is almosttangential to the pitch diameter of the wheel, thereby securing a maximum-turning effect.

By the use of buckets of the character described, we have found that the dispersion and improper direction (if the jet is reduced to such an extent that a much smaller number of buckets may be employed upon a result than have heretofore been required and therefore the loss of energ resulting from the entrance of the successive buckets into the jet is proportionally reduced.

Without limiting myself to the precise con- 1nvention, I

A bucket for impact wheels consisting of a shell having side pockets and an intermediate rib-the edge 0 which is inclined backward .on a line at an angle to the plane of the edge of the shell, and witha recess a:, m, formedby cutting away the outer portion of the rib and,

adjacent portions of the shell, as set forth wheel of a given diameter to secure a given In testimony whereof I affix: my signature in presence of two witnesses.

WILLIAM A. DOBLE. Witnesses:

J. C. LUTGEN, H. L. SIMON. 

